diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 366f25c..7efcfad 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 add_executable(sample_usage sample_usage.cpp)
 
 target_link_libraries(sample_usage PRIVATE beman::copyable_function)
diff --git a/examples/sample_usage.cpp b/examples/sample_usage.cpp
index c4e9e7f..485ea45 100644
--- a/examples/sample_usage.cpp
+++ b/examples/sample_usage.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 #include <beman/copyable_function/copyable_function.hpp>
 
 // a Callable object